Issue: https://github.com/CertifiedBadIdeas/Compukters/issues/704
Worktree: .worktrees/vm-performance
Baseline parent: 6528a680
Baseline VM: 18103f01963874510fa25d4396a2dc3e7ee47640
Updated VM: 190479a

PASS cargo test --manifest-path host/compukter-vm/Cargo.toml --locked --offline
545 passed, 10 ignored (unit, integration, documentation).
Local complete output: build/reports/debug-paths-704/rust-test.txt
PASS cargo fmt --manifest-path host/compukter-vm/Cargo.toml -- --check
PASS cargo clippy --manifest-path host/compukter-vm/Cargo.toml --locked --offline --all-targets -- -D warnings

Producer/consumer command:
JAVA_HOME=/usr/lib/jvm/java-25-openjdk ./gradlew-sandbox-dev-parallel-summary :compiler-artifact:formatKotlin :compiler-artifact:check :compiler-k2:generateBootArtifact :compiler-k2:generateShellArtifact :compiler-k2:generateKotlincArtifact :compiler-k2:generateEditArtifact :compiler-k2:generateVmbenchArtifact :compiler-k2:generateVmbenchAgentArtifact testKotlinMapNotNullVmConformance testKotlinMutableListVmConformance testKotlinExceptionsVmConformance --offline
PASS BUILD SUCCESSFUL in 1m 29s; 50 tasks, 22 executed, 28 up-to-date.
161 compiler-artifact JVM tests, zero failures.
Local complete output: build/agent-logs/gradle-20261007T200658Z-143519.log

PASS all eight files admitted through public verify_artifact with ArtifactLimits::default(), using source-built production Rust (no cfg(test)).
Local output: build/reports/debug-paths-704/native-verify.txt

PASS python3 docs/benchmarks/debug-paths-704-2026-10-07/verify_legacy_equivalence.py
All eight compact artifacts expand into legacy bytes with exactly the archived pre-change SHA-256.
PASS read-only analyzer: eight new hashes match recorded results, complete byte totals reconcile, a corrupted digest is rejected.

PASS negative compatibility check: frozen baseline 0.20.0 guest-benchmark rejects compact boot during verification, before execution:
BadSection, "unknown required or semantic section".
Local output: build/reports/debug-paths-704/old-reader/result.txt

No timing improvement, full-checkout verification, GameTests, cross-platform bundle coverage or release readiness claimed.
Published Runtime 0.20.0 native bundles predate DEBUG_PATHS; packaging requires a future immutable native release and pin update.